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Mean Well

Mean Well PD-45B Power Supply 45W 5V 24V 3.2A

low leakage current < 0.5mAlow costhigh reliability
SKU PD-45B
$19.05 USD
Shipping calculated at checkout.
Available to order
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Overview

PD-45B is the CH1: 5V / CH2: 24V output model of this series: rated current CH1: 3.2A / CH2: 1.2A, rated power 44.8W, typical efficiency 78%.

Features

  • Universal AC input/Full range
  • Low leakage current<0.5mA
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • 100% full load burn-in test
  • Fixed switching frequency at 65KHz
  • 2 years warranty

Specifications

PD-45BSpecifications from the official datasheet (2024-10-30 edition)

OUTPUT

OUTPUT NUMBER
CH1 / CH2
DC VOLTAGE
CH1: 5V / CH2: 24V
RATED CURRENT
CH1: 3.2A / CH2: 1.2A
CURRENT RANGE
CH1: 0.4 ~ 5A / CH2: 0.2 ~ 1.8A
RATED POWER
44.8W
OUTPUT POWER (max.)
Rated output power for convection; 52W with 18CFM min. Forced air
RIPPLE & NOISE (max.)Note.2
CH1: 50mVp-p / CH2: 150mVp-p
VOLTAGE ADJ. RANGE
CH1:4.75 ~ 5.5V
VOLTAGE TOLERANCENote.3
CH1: ±4.0% / CH2: ±7.0%
LINE REGULATION
CH1: ±1.0% / CH2: ±2.0%
LOAD REGULATION
CH1: ±3.0% / CH2: ±4.0%
SETUP, RISE TIME
800ms, 20ms at full load
HOLD UP TIME (Typ.)
60ms at full load

INPUT

VOLTAGE RANGE
90 ~ 264VAC 127 ~370VDC
FREQUENCY RANGE
47 ~ 440Hz
EFFICIENCY(Typ.)
78%
AC CURRENT (Typ.)
1A/115VAC 0.7A/230VAC
INRUSH CURRENT (Typ.)
COLD START 15A/115VAC 30A/230VAC
LEAKAGE CURRENT
<0.75mA

PROTECTION

OVERLOAD
53 ~ 75W rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed.
OVER VOLTAGE
5.75 ~ 6.75VDC on CH1 Protection type : Hiccup mode, recovers automatically after fault condition is removed.

ENVIRONMENT

WORKING TEMP.
-10 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-20 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.04%/℃ (0 ~ 50℃) on +5V output
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
3814.3K hrs min. Telcordia SR-332 (Bellcore) ; 498.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
127*76*28mm (L*W*H)
PACKING
0.2Kg; 72pcs/16Kg/1.28CUFT
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  5. 5. Mounting holes M1 and M2 should be grounded for EMI purposes.
  6. 6. Heat Sink HS1,HS2 can not be shorted.
  7. 7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

PD-45B Mechanical Specification
Mechanical Specification
PD-45B Block Diagram
Block Diagram
PD-45B Derating Curve
Derating Curve

Downloads

FAQ

Can I use the PD-45B for a 5V automation controller, HMI, or communication device?

Yes, the PD-45B is appropriate for 5V constant voltage automation electronics that need up to 3.2A. It also provides a second 24V output at 1.2A, with 44.8W total rated power.

Is the PD-45B suitable for embedded equipment with several 5V loads on one supply?

It can be used for multi-board or peripheral-heavy 5V systems as long as the combined draw stays within 3.2A. The 5V CH1 output is joined by a 24V CH2 output at 1.2A, with 44.8W total available power.

Can the PD-45B support industrial monitoring or control electronics that need a stable 5V supply?

Yes, it is intended for constant voltage use and fits industrial monitoring, control, or logic electronics that require 5V. The 5V output is rated 3.2A with ±4.0% tolerance and is adjustable from 4.75 to 5.5V.

Can the PD-45B be used outside or in unprotected enclosures?

The listed operating temperature range is -10°C to +60°C, but there is no IP rating in the provided specifications. Because of that, it is better suited to indoor or protected enclosure use rather than direct outdoor exposure.

How does the PD-45B compare with other PD family models?

The PD-45B is rated at 44.8W with 5V at 3.2A and 24V at 1.2A. The PD-45A on the same datasheet pairs 5V at 3.2A with 12V at 2A for 40W; both reach 52W with 18CFM minimum forced air.

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Mean Well PD-45B Power Supply 45W 5V 24V 3.2A
Mean Well

Mean Well PD-45B Power Supply 45W 5V 24V 3.2A

$19.05 USD

PD-45B is the CH1: 5V / CH2: 24V output model of this series: rated current CH1: 3.2A / CH2: 1.2A, rated power 44.8W, typical efficiency 78%.

Features

  • Universal AC input/Full range
  • Low leakage current<0.5mA
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • 100% full load burn-in test
  • Fixed switching frequency at 65KHz
  • 2 years warranty
View product

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